Great three season sleeping bag. I slept out on the…

I slept out on the AT in Georgia, and it dipped to the upper twenties, and I was actually quite warm, despite the fact that I was sleeping on just a pile of leaves... My feet were cold, but other than that, I was comfortable enough.

I also slept out in Colorado and California through different seasons (but winter), and was very pleased with the warmth it provided.

Otherwise, the 15F rating is a total misrepresentation. A person would become hypothermic with this bag at that temperature. The "loft" disappeared after a couple of uses, the zipper snags easily, and it is obviously made for chumps in a mass market that doesn't know how to tell well-made gear from a hole in the ground.

I bought this at Dicks and used it Jan 2010 on the…

I bought this at Dicks and used it Jan 2010 on the AT in New York. It was 20F and snowing.

The Marmot Aspen Explorer 15F kept me warm at night. The temps dipped to about 10F early morning. I did sleep in base layer and fleece, with body warmers in my socks, and we were in an AT shelter. But that bag should keep you warm down to 20F.